Trait std::iter::Sum

pub trait Sum<A = Self> {
    fn sum<I>(iter: I) -> Self where I: Iterator<Item=A>;
}

Trait to represent types that can be created by summing up an iterator.

This trait is used to implement the sum() method on iterators. Types which implement the trait can be generated by the sum() method. Like FromIterator this trait should rarely be called directly and instead interacted with through Iterator::sum().

Required Methods

fn sum<I>(iter: I) -> Self where I: Iterator<Item=A>

Method which takes an iterator and generates Self from the elements by "summing up" the items.

Implementors

• impl<T, U, E> Sum<Result<U, E>> for Result<T, E> where T: Sum<U>
• impl Sum<i8> for i8
• impl<'a> Sum<&'a i8> for i8
• impl Sum<i16> for i16
• impl<'a> Sum<&'a i16> for i16
• impl Sum<i32> for i32
• impl<'a> Sum<&'a i32> for i32
• impl Sum<i64> for i64
• impl<'a> Sum<&'a i64> for i64
• impl Sum<isize> for isize
• impl<'a> Sum<&'a isize> for isize
• impl Sum<u8> for u8
• impl<'a> Sum<&'a u8> for u8
• impl Sum<u16> for u16
• impl<'a> Sum<&'a u16> for u16
• impl Sum<u32> for u32
• impl<'a> Sum<&'a u32> for u32
• impl Sum<u64> for u64
• impl<'a> Sum<&'a u64> for u64
• impl Sum<usize> for usize
• impl<'a> Sum<&'a usize> for usize
• impl Sum<Wrapping<i8>> for std::num::Wrapping<i8>
• impl<'a> Sum<&'a Wrapping<i8>> for std::num::Wrapping<i8>
• impl Sum<Wrapping<i16>> for std::num::Wrapping<i16>
• impl<'a> Sum<&'a Wrapping<i16>> for std::num::Wrapping<i16>
• impl Sum<Wrapping<i32>> for std::num::Wrapping<i32>
• impl<'a> Sum<&'a Wrapping<i32>> for std::num::Wrapping<i32>
• impl Sum<Wrapping<i64>> for std::num::Wrapping<i64>
• impl<'a> Sum<&'a Wrapping<i64>> for std::num::Wrapping<i64>
• impl Sum<Wrapping<isize>> for std::num::Wrapping<isize>
• impl<'a> Sum<&'a Wrapping<isize>> for std::num::Wrapping<isize>
• impl Sum<Wrapping<u8>> for std::num::Wrapping<u8>
• impl<'a> Sum<&'a Wrapping<u8>> for std::num::Wrapping<u8>
• impl Sum<Wrapping<u16>> for std::num::Wrapping<u16>
• impl<'a> Sum<&'a Wrapping<u16>> for std::num::Wrapping<u16>
• impl Sum<Wrapping<u32>> for std::num::Wrapping<u32>
• impl<'a> Sum<&'a Wrapping<u32>> for std::num::Wrapping<u32>
• impl Sum<Wrapping<u64>> for std::num::Wrapping<u64>
• impl<'a> Sum<&'a Wrapping<u64>> for std::num::Wrapping<u64>
• impl Sum<Wrapping<usize>> for std::num::Wrapping<usize>
• impl<'a> Sum<&'a Wrapping<usize>> for std::num::Wrapping<usize>
• impl Sum<f32> for f32
• impl<'a> Sum<&'a f32> for f32
• impl Sum<f64> for f64
• impl<'a> Sum<&'a f64> for f64